mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-11-19 18:38:36 +00:00
95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "OpusTrackEncoder.h"
|
|
|
|
using namespace mozilla;
|
|
|
|
class TestOpusTrackEncoder : public OpusTrackEncoder
|
|
{
|
|
public:
|
|
// Return true if it has successfully initialized the Opus encoder.
|
|
bool TestOpusCreation(int aChannels, int aSamplingRate)
|
|
{
|
|
if (Init(aChannels, aSamplingRate) == NS_OK) {
|
|
if (GetPacketDuration()) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Return the sample rate of data to be fed to the Opus encoder, could be
|
|
// re-sampled if it was not one of the Opus supported sampling rates.
|
|
// Init() is expected to be called first.
|
|
int TestGetOutputSampleRate()
|
|
{
|
|
return mInitialized ? GetOutputSampleRate() : 0;
|
|
}
|
|
};
|
|
|
|
static bool
|
|
TestOpusInit(int aChannels, int aSamplingRate)
|
|
{
|
|
TestOpusTrackEncoder encoder;
|
|
return encoder.TestOpusCreation(aChannels, aSamplingRate);
|
|
}
|
|
|
|
static int
|
|
TestOpusResampler(int aChannels, int aSamplingRate)
|
|
{
|
|
TestOpusTrackEncoder encoder;
|
|
EXPECT_TRUE(encoder.TestOpusCreation(aChannels, aSamplingRate));
|
|
return encoder.TestGetOutputSampleRate();
|
|
}
|
|
|
|
TEST(Media, OpusEncoder_Init)
|
|
{
|
|
// Expect false with 0 or negative channels of input signal.
|
|
EXPECT_FALSE(TestOpusInit(0, 16000));
|
|
EXPECT_FALSE(TestOpusInit(-1, 16000));
|
|
|
|
// The Opus format supports up to 8 channels, and supports multitrack audio up
|
|
// to 255 channels, but the current implementation supports only mono and
|
|
// stereo, and downmixes any more than that.
|
|
// Expect false with channels of input signal exceed the max supported number.
|
|
EXPECT_FALSE(TestOpusInit(8 + 1, 16000));
|
|
|
|
// Should accept channels within valid range.
|
|
for (int i = 1; i <= 8; i++) {
|
|
EXPECT_TRUE(TestOpusInit(i, 16000));
|
|
}
|
|
|
|
// Expect false with 0 or negative sampling rate of input signal.
|
|
EXPECT_FALSE(TestOpusInit(1, 0));
|
|
EXPECT_FALSE(TestOpusInit(1, -1));
|
|
|
|
// Verify sample rate bounds checking.
|
|
EXPECT_FALSE(TestOpusInit(2, 2000));
|
|
EXPECT_FALSE(TestOpusInit(2, 4000));
|
|
EXPECT_FALSE(TestOpusInit(2, 7999));
|
|
EXPECT_TRUE(TestOpusInit(2, 8000));
|
|
EXPECT_TRUE(TestOpusInit(2, 192000));
|
|
EXPECT_FALSE(TestOpusInit(2, 192001));
|
|
EXPECT_FALSE(TestOpusInit(2, 200000));
|
|
}
|
|
|
|
TEST(Media, OpusEncoder_Resample)
|
|
{
|
|
// Sampling rates of data to be fed to Opus encoder, should remain unchanged
|
|
// if it is one of Opus supported rates (8000, 12000, 16000, 24000 and 48000
|
|
// (kHz)) at initialization.
|
|
EXPECT_TRUE(TestOpusResampler(1, 8000) == 8000);
|
|
EXPECT_TRUE(TestOpusResampler(1, 12000) == 12000);
|
|
EXPECT_TRUE(TestOpusResampler(1, 16000) == 16000);
|
|
EXPECT_TRUE(TestOpusResampler(1, 24000) == 24000);
|
|
EXPECT_TRUE(TestOpusResampler(1, 48000) == 48000);
|
|
|
|
// Otherwise, it should be resampled to 48kHz by resampler.
|
|
EXPECT_FALSE(TestOpusResampler(1, 9600) == 9600);
|
|
EXPECT_FALSE(TestOpusResampler(1, 44100) == 44100);
|
|
}
|